4154154154261 has 4 divisors (see below), whose sum is σ = 4154382009612. Its totient is φ = 4153926298912.

The previous prime is 4154154154229. The next prime is 4154154154349. The reversal of 4154154154261 is 1624514514514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3717642878161 + 436511276100 = 1928119^2 + 660690^2 .

It is a cyclic number.

It is not a de Polignac number, because 4154154154261 - 2⁵ = 4154154154229 is a prime.

It is a super-2 number, since 2×4154154154261² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4154154154361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113900326 + ... + 113936791.

It is an arithmetic number, because the mean of its divisors is an integer number (1038595502403).

Almost surely, 2^{4154154154261} is an apocalyptic number.

It is an amenable number.

4154154154261 is a deficient number, since it is larger than the sum of its proper divisors (227855351).

4154154154261 is a wasteful number, since it uses less digits than its factorization.

4154154154261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227855350.

The product of its digits is 384000, while the sum is 43.

Adding to 4154154154261 its reverse (1624514514514), we get a palindrome (5778668668775).

The spelling of 4154154154261 in words is "four trillion, one hundred fifty-four billion, one hundred fifty-four million, one hundred fifty-four thousand, two hundred sixty-one".